Simple binary fission is present in

Options

A. Amoeba
B. Euglena
C. Paramoecium
D. Vorticella

Answer

**Step-by-Step Solution:**

1. **Understanding Binary Fission**: Binary fission is a method of asexual reproduction where a single parent organism divides into two daughter cells. This process is common in prokaryotes and some lower organisms.

2. **Types of Binary Fission**: There are four main types of binary fission based on the plane of division:
- **Simple (Irregular) Binary Fission**: Division can occur in any plane, not restricted to a specific axis.
- **Transverse Binary Fission**: Division occurs along the transverse axis of the organism.
- **Longitudinal Binary Fission**: Division occurs along the longitudinal axis of the organism.
- **Oblique Binary Fission**: Division occurs at an angle, either left or right.

3. **Identifying Organisms**: Now, let's analyze the options given in the question:
- **Amoeba**: Undergoes simple (irregular) binary fission.
- **Euglena**: Undergoes longitudinal binary fission.
- **Paramecium**: Undergoes transverse binary fission.
- **Vorticella**: Also undergoes longitudinal binary fission.

4. **Conclusion**: Based on the types of binary fission associated with each organism, the correct answer to the question "Simple binary fission is present in" is **Amoeba**.

**Final Answer**: Simple binary fission is present in **Amoeba**.

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